<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">

function boom()
{
  var svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
  var fo  = document.createElementNS("http://www.w3.org/2000/svg", "foreignObject");
  fo.style.padding = "10em";
  svg.appendChild(fo);
  document.body.appendChild(svg);
  document.body.offsetHeight;

  var opt = document.createElementNS("http://www.w3.org/1999/xhtml", "span");
  fo.appendChild(opt);
}

</script>
</head>

<body onload="boom();"></body>

</html>
